A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Quintessential enhancement of dark matter abundance
2003
Physics Letters B
Preserved Fulltext
Other Versions
The presence of a dynamical scalar field in the early universe could significantly affect the 'freeze-out' time of particle species. In particular, it was recently shown that an enhancement of the relic abundance of neutralinos can be produced in this way. We examine under which conditions this primordial scalar field could be identified with the Quintessence scalar and find, through concrete examples, that modifications to the standard paradigm are necessary. We discuss two possible cases: the
doi:10.1016/j.physletb.2003.07.048
fatcat:667eqgs6grcffp7m2uprw4h6oi